Updated openstack/openstack
Project: openstack/keystone  9674c45513142bf41072dd8b38d997f580b9335a

Rename `removeEvent` to be more pythonic

This is a non-functional change that renames a testing method to be more
consistent with OpenStack method naming conventions.

Change-Id: If9088379326acbb06b3b85731ad30edc10a9e7b6